工具书 关键词 句对库 合计 employment structure 0 98 465 563 structure of employment 0 9 24 33 the employment structure 0 1 122 123 the structure of employment 0 2 9 11 employment structures 0 1 18 19        宏观经济管理与可持续发展  经济体制改革  人才学与劳动科学   农业经济  数学  合计 employment structure  189   75   68   25   17   374  structure of employment  13   4   1   0   1   19  the employment structure  53   19   17   6   7   102  the structure of employment  5   1   0   0   1   7  employment structures  11   0   4   1   0   16